Royal Designs Square Cube Bell Basic Lamp Shade, Eggshell, 12 x 13 x 13 Shade Dimensions: 12 x 13 x 17 (top x bottom x height) Shape: square Cube Bell Fabric: hand Tailored silk-type Shantung fabric, premium off-white softback lining Washer: standard (0.5 inch recess) brass-finish spider Fitter w/trademark stamping. (Shades with 9+ top diameter have a v-notch Fitter for use with a 6 or 8 reflector bowl) Frame: heavy grade 1.5mm rust resistant metal Frame. Thicker than typical standard lamp shades